Install opencensus extension (#359)

* Install opencensus extension

* Add opencensus to the list of available extension in extension enabler

* Add a test for opencensus extension
Also enable grpc and pdo_sqlite in composer.json

* Add a missing semicolon

* Fixing a broken e2e test

php-base/build-scripts/install_extensions.php

@@ -44,6 +44,7 @@ class InstallExtensions
         'memcached',
         'mongodb',
         'oauth',
+        'opencensus',
         'phalcon',
         'pq',
         'protobuf',
@@ -81,6 +82,7 @@ class InstallExtensions
         'ds' => ['5.6'],
         'lua' => ['5.6'],
         'memcache' => ['7.0', '7.1'],
+        'opencensus' => ['5.6'],
         'phalcon' => ['7.1'],
         'v8js' => ['5.6'],
         'vips' => ['5.6'],

php-base/build-scripts/install_php70.sh

@@ -32,6 +32,7 @@ apt-get install -y \
         gcp-php70-memcached \
         gcp-php70-mongodb \
         gcp-php70-oauth \
+        gcp-php70-opencensus \
         gcp-php70-phalcon \
         gcp-php70-pq \
         gcp-php70-protobuf \

php-base/build-scripts/install_php71.sh

@@ -32,6 +32,7 @@ apt-get install -y \
         gcp-php71-memcached \
         gcp-php71-mongodb \
         gcp-php71-oauth \
+        gcp-php71-opencensus \
         gcp-php71-pq \
         gcp-php71-protobuf \
         gcp-php71-rdkafka \

php-base/build-scripts/install_php72.sh

@@ -31,6 +31,7 @@ apt-get install -y \
         gcp-php72-memcached \
         gcp-php72-mongodb \
         gcp-php72-oauth \
+        gcp-php72-opencensus \
         gcp-php72-pq \
         gcp-php72-protobuf \
         gcp-php72-rdkafka \

testapps/build_pipeline/composer.json

@@ -7,6 +7,9 @@
     ],
     "require": {
         "php": "7.1.*",
+        "ext-grpc": "*",
+        "ext-opencensus": "*",
+        "ext-pdo_sqlite": "*",
         "google/auth": "^0.11",
         "grpc/grpc": "^1.0",
         "silex/silex": "^1.3"

testapps/build_pipeline/tests/tests/EndToEndTest.php

@@ -198,6 +198,28 @@ public function testGoodbye()
         });
     }
 
+    /**
+     * @dataProvider extensions
+     */
+    public function testExtensions($extensionName)
+    {
+        $this->runEventuallyConsistentTest(function () use ($extensionName) {
+            $query = http_build_query(['ext' => $extensionName]);
+            $resp = $this->client->get('/check_extensions.php?' . $query);
+            $this->assertEquals('200', $resp->getStatusCode(),
+                                "failed to confirm $extensionName is loaded");
+        });
+    }
+
+    public function extensions()
+    {
+        return [
+            ['grpc'],
+            ['opencensus'],
+            ['pdo_sqlite'],
+        ];
+    }
+
     public function testPhpInfo()
     {
         $this->runEventuallyConsistentTest(function () {

testapps/build_pipeline/web/check_extensions.php

@@ -0,0 +1,25 @@
+<?php
+
+/*
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+$ext = $_GET["ext"];
+
+if (! extension_loaded($ext)) {
+    die(1);
+}
+
+echo 'OK';